Scleral bridging technique for preventing PreserFlo microshunt exposure: A case report.

INTRODUCTION

The use of the PreserFlo microshunt is gaining popularity owing to its ease of implantation and reduced need for postoperative intervention compared to conventional trabeculectomy.

PATIENT CONCERNS: However, microshunt exposure remains a severe complication of PreserFlo surgery, particularly in patients with a thin Tenon capsule and conjunctiva. However, the actual thickness and intensity of the Tenon capsule or conjunctiva can be confirmed only during surgery.

DIAGNOSIS: Exfoliation glaucoma with previous several glaucoma surgeries with thinner Tenon capsule or conjunctiva.

INTERVENTIONS: We performed PreserFlo implantation with a surgical technique to recover a thin Tenon capsule and conjunctiva by creating a half-thickness rectangular scleral flap under the shunt and covering it over the microshunt until the distal part, similar to the bridge.

OUTCOMES: The patient had better intraocular pressure control with positive cosmetic appearance using this technique.

CONCLUSION

This technique will be beneficial for both preventing exposure and holding down the top, in addition to improving cosmetic appearance.